28532838 has 16 divisors (see below), whose sum is σ = 57194496. Its totient is φ = 9489480.

The previous prime is 28532837. The next prime is 28532869. The reversal of 28532838 is 83823582.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28532796 and 28532805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28532831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2358 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (3574656).

Almost surely, 2^28532838 is an apocalyptic number.

28532838 is an abundant number, since it is smaller than the sum of its proper divisors (28661658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28532838 is a wasteful number, since it uses less digits than its factorization.

28532838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10739.

The product of its digits is 92160, while the sum is 39.

The square root of 28532838 is about 5341.6138010905. The cubic root of 28532838 is about 305.5730086241.

The spelling of 28532838 in words is "twenty-eight million, five hundred thirty-two thousand, eight hundred thirty-eight".